Compliance Report - Weekly Construction Status Report No. 173 of Gulf LNG Energy, LLC under CP06-12.

National Fuel Gas Supply Corporation ATTACHMENT 4 NATIONAL FUEL GAS SUPPLY CORPORATION ENVIRONMENTAL REPORT COLDEN STORAGE AURORA AND HEATH WELLS August 2011 National Fuel Gas Supply Corporation Engineering Department 1100 State Street Erie, PA 16501 TABLE OF CONTENTS Page 1. GENERAL PROJECT DESCRIPTION 1 1.1 Proposed Facilities 1 1.2 Non-Jurisdictional or Other Facilities 2 1.3 Facilities Abandonment 2 1.4 Location Map, Site Map, and Aerial Photograph 2 1.5 Construction and Restoration 2 1.5.1 Construction 2 1.5.2 Restoration 3 1.6 Permits and Approval 3 1.6.1 Approvals 3 1.6.2 Permits 3 1.7 Landowner Notification 4 2. WATER USE AND QUALITY 6 2.1 Groundwater Resources 6 2.1.1 Regional Aquifers and Other Groundwater Sources 6 State-Designated Aquifers 6 2.1.2 Public and Private Water Supply Wells 6 2.2 Surface Water 6 2.2.1 Waterbodies 6 2.2.2 Wetlands 7 2.2.3 Hydrostatic Test Water 8 2.3 Impacts 8 3. FISH, WILDLIFE, AND VEGETATION 10 3.1 Vegetation and Wildlife Resources 10 3.2 Aquatic and Wetland Ecosystems 10 3.3 Threatened and Endangered Species 11 3.4 Construction Impacts and Mitigation Measures 11 4. CULTURAL RESOURCES 13 4.1 Proposed Facilities 13 4.2 State Historic Preservation Officer 13 4.3 Native American Tribes 13 4.4 Unanticipated Discovery Plan 13 5. SOCIOECONOMICS 16 6. GEOLOGICAL RESOURCES 17 6.1 Facilities 17 6.2 General Geologic Conditions 17 TABLE OF CONTENTS (continued) Page 6.2.1 Physiographic Provinces 17 6.2.2 Surficial Geology and Topography 18 6.3 Blasting 18 6.4 Mineral Resources 18 6.5 Geological Hazards 18 7. SOILS 21 7.1 Facilities 21 7.2 Soil Inventory and Description 21 7.2.1 Aurora Well Site 21 7.2.2 Heath Well Site 22 7.3 Construction Impacts 25 7.3.1 Mitigation Measures 25 7.3.2 Erosion and Sediment Control Measures 25 7.3.3 Agricultural and Residential Lands 25 7.3.4 Construction Schedule 25 8. LAND USE, RECREATION, AND AESTHETICS 27 8.1 Land Use 27 8.1.1 Affected Lands 27 8.1.2 Access Road 28 8.1.3 Contractor and Staging Yards 28 8.1.4 Existing and Planned Residential 28 8.2 Public Land, Recreation, and Other Designated Areas 28 8.3 Visual Resources 28 9. AIR QUALITY AND NOISE 29 9.1 Air Quality 29 9.2 Noise 29 9.3 State or Local Noise Regulations 29 10. ALTERNATIVES 30 10.1 No Action Alternative 30 10.2 System Alternative 30 11. RELIABILITY AND SAFETY 31 12. PCB CONTAMINATION 32 13. INTRODUCTION 33 NATIONAL FUEL GAS SUPPLY CORPORATION COLDEN STORAGE - AURORA AND HEATH WELLS AUGUST 2011 RESOURCE REPORT 1 1. GENERAL PROJECT DESCRIPTION National Fuel Gas Supply Corporation (National Fuel) is filing with the Federal Energy Regulatory Commission (FERC) this environmental report for the installation of facilities in the Colden Storage field within Aurora and Colden Townships, Erie County, New York (Project). The Project consists of the installation of two horizontal gas storage wells, one within the Aurora Pool, Well #7452 (Aurora Well) and one within the Heath Pool, Well #7453 (